25570807552 has 18 divisors (see below), whose sum is σ = 51041729648. Its totient is φ = 12785403648.

The previous prime is 25570807531. The next prime is 25570807573.

25570807552 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (25570807531) and next prime (25570807573).

It is a super-2 number, since 2×25570807552² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49942728 + ... + 49943239.

Almost surely, 2^25570807552 is an apocalyptic number.

It is an amenable number.

25570807552 is a deficient number, since it is larger than the sum of its proper divisors (25470922096).

25570807552 is an frugal number, since it uses more digits than its factorization.

25570807552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99885983 (or 99885969 counting only the distinct ones).

The product of its (nonzero) digits is 980000, while the sum is 46.

The spelling of 25570807552 in words is "twenty-five billion, five hundred seventy million, eight hundred seven thousand, five hundred fifty-two".